North America Non-native Plant

European Olive

Botanical name: Olea europaea europaea

USDA symbol: OLEUE

Life cycle: perennial

Habit: shrub

Native status: Non-native, reproduces and persists in the wild in Hawaii âš˜ Non-native, reproduces and persists in the wild in the lower 48 states  

European Olive: A Mediterranean Marvel for Your Garden If you’ve ever dreamed of bringing a touch of the Mediterranean to your backyard, the European olive (Olea europaea europaea) might just be the tree that captures your imagination. With its distinctive silvery leaves and the promise of homegrown olives, this perennial ...

European Olive: A Mediterranean Marvel for Your Garden

If you’ve ever dreamed of bringing a touch of the Mediterranean to your backyard, the European olive (Olea europaea europaea) might just be the tree that captures your imagination. With its distinctive silvery leaves and the promise of homegrown olives, this perennial shrub has found its way into gardens far from its ancestral home.

What Makes the European Olive Special?

The European olive is a multi-stemmed woody plant that typically grows as a shrub, usually reaching heights of 13 to 16 feet, though it can grow taller under the right conditions. What really sets this plant apart is its stunning aesthetic appeal. The silvery-green leaves seem to shimmer in the sunlight, creating a beautiful contrast against the increasingly gnarled and characterful trunk that develops with age. In spring, small white flowers appear, followed by the famous olives that have been prized by humans for thousands of years.

Where Does It Grow Naturally?

Originally from the Mediterranean Basin, including Southern Europe, North Africa, and the Middle East, the European olive has adapted to life far from home. In the United States, it’s considered a non-native species that has been introduced and now reproduces spontaneously in the wild in California and Hawaii, where it persists without human intervention.

Garden Appeal and Landscape Role

The European olive shines as a specimen tree in Mediterranean-style gardens, xeriscapes, and coastal landscapes. Its drought tolerance once established makes it particularly valuable in water-wise gardening. The tree’s unique form and silvery foliage provide year-round visual interest, while its flowers attract bees and other small pollinators, adding ecological value to your garden.

Growing Conditions and Care

If you’re considering adding a European olive to your landscape, here’s what you need to know about keeping it happy:

  • Sunlight: Requires full sun for optimal growth and fruit production
  • Soil: Prefers well-drained soil; can tolerate poor soils but struggles in waterlogged conditions
  • Water: Drought tolerant once established, requiring minimal supplemental watering
  • Climate: Thrives in USDA hardiness zones 8-10, with some varieties tolerating zone 7

Planting and Care Tips

Spring is the ideal time to plant your European olive. Choose a location with excellent drainage and plenty of sunshine. Once planted, be patient – these trees are slow to establish but incredibly long-lived once they settle in. Regular pruning helps maintain shape and encourages fruit production, though the tree is quite forgiving if you forget to trim it for a season or two.

A Word About Native Alternatives

While European olives can be lovely additions to appropriate gardens, it’s worth considering native alternatives that provide similar benefits while supporting local ecosystems. Depending on your region, native options might include desert willow in arid areas, or native oaks that offer comparable drought tolerance and wildlife value.

The Bottom Line

The European olive brings undeniable Mediterranean charm to suitable climates, offering both beauty and the potential for homegrown olives. While it’s not native to North America, it’s not currently listed as invasive, making it a reasonable choice for gardeners in zones 8-10 who want to create a Mediterranean atmosphere. Just remember to plant responsibly and consider how native alternatives might better serve your local ecosystem while still achieving your garden goals.

European Olive

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Scrophulariales

Family

Oleaceae Hoffmanns. & Link - Olive family

Genus

Olea L. - olive

Species

Olea europaea L. - olive

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA